.bg{
    width: 100%;
    min-height: 100%;
    background: #4f5b75;
    overflow: hidden;
}
.login_box{
    width: 450px;
    border-radius: 5px;
    margin: 0 auto;
    background: #fff;
    padding: 24px 48px;
    position: relative;
}
.h1{
    color: white;
    
    text-align: center;
}
.h3{
    font-size: 18px;
    color: #4e5667;
    border-bottom: 1px solid #e6eaf1;
    padding-bottom: 10px;
}